Draytek Vigor2000 User Manual page 63

Remote Access
Dial-In Access Control
Dial-In Service: Check "Enable" to allow dial-in service. Note
that if you check "Disable", the router will not accept any in-
coming ISDN calls.
PPP/MP Setup
Dial-In PPP Authentication:
PAP: Selecting this option will force the router to au-
thenticate dial-in users with the PAP protocol.
PAP or CHAP: Selecting this option means the router
will attempt to authenticate dial-in users with the CHAP
protocol first. If the dial-in user does not support this
protocol, it will fall back to use the PAP protocol for au-
thentication.
Mutual Authentication (PAP): Enable this only if the connecting
router requires mutual authentication. By default, the option is
set to No.
IP Address Assignment for Dial-In Users
Start IP Address: Enter a start IP address to be assigned to
the dial-in PPP connection. You should choose an IP address
from the local private network. For example, if the local private
network is 192.168.1.0/255.255.255.0, you can choose
192.168.1.200 to be the Start IP Address.
Because one ISDN BRI has two independent data channels (B-
channels), it is possible to allow two dial-in users at the same
time. The first dial-in user would be assigned the start IP address
and the second would be assigned the start IP address plus 1.
Click "OK"
4.2.2 Creating an Access Account for a Dial-in User
After activating the dial-in capability, you must create an access ac-
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